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Mirrors > Home > MPE Home > Th. List > elrab3 | Structured version Visualization version GIF version |
Description: Membership in a restricted class abstraction, using implicit substitution. (Contributed by NM, 5-Oct-2006.) |
Ref | Expression |
---|---|
elrab.1 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) |
Ref | Expression |
---|---|
elrab3 | ⊢ (𝐴 ∈ 𝐵 → (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ 𝜓)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elrab.1 | . . 3 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) | |
2 | 1 | elrab 3628 | . 2 ⊢ (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ (𝐴 ∈ 𝐵 ∧ 𝜓)) |
3 | 2 | baib 539 | 1 ⊢ (𝐴 ∈ 𝐵 → (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ 𝜓)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 = wceq 1538 ∈ wcel 2111 {crab 3110 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-rab 3115 df-v 3443 |
This theorem is referenced by: unimax 4836 fnelfp 6914 fnelnfp 6916 fnse 7810 fin23lem30 9753 isf32lem5 9768 negn0 11058 ublbneg 12321 supminf 12323 sadval 15795 smuval 15820 dvdslcm 15932 dvdslcmf 15965 isprm2lem 16015 isacs1i 16920 isinito 17252 istermo 17253 subgacs 18305 nsgacs 18306 odngen 18694 sdrgacs 19573 lssacs 19732 mretopd 21697 txkgen 22257 xkoco1cn 22262 xkoco2cn 22263 xkoinjcn 22292 ordthmeolem 22406 shft2rab 24112 sca2rab 24116 lhop1lem 24616 ftalem5 25662 vmasum 25800 israg 26491 ebtwntg 26776 eupth2lem3lem3 28015 eupth2lem3lem4 28016 eupth2lem3lem6 28018 cycpmco2lem1 30818 cycpmco2lem4 30821 cycpmco2 30825 tgoldbachgt 32044 cvmliftmolem1 32641 neibastop3 33823 fdc 35183 pclvalN 37186 dvhb1dimN 38282 hdmaplkr 39209 fsuppssind 39459 diophren 39754 islmodfg 40013 fsovcnvlem 40714 ntrneiel 40784 radcnvrat 41018 supminfxr 42103 stoweidlem34 42676 |
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